Now that the human race has the power to blacken this planet to a cinder, it has at last become obvious that every sane person has a vital interest in the cause of peace. By what process peace can be achieved is the problem confronting the whole world; but - however it may or may not be done - it is at least possible that a widely acceptable symbol could play a crucial role in the process.
Bergerson, Howard W.
"A Logological Symbol for the Cause of Peace,"
Word Ways: Vol. 2
, Article 11.
Available at: https://digitalcommons.butler.edu/wordways/vol2/iss4/11